say I fished Lanier 3 weeks ago, now I go fish Logan Martin this last Sunday. This not a Insight unit and I have the correct chip but when chart is chosen it is still showing my last trip to Lanier and the display isn't moving. It's like locked on last frame of Lanier with a line west to east and north to south like cross hairs and just fixed. Do I need to go to menu and select the chip or something? Thanks.....G